Katharine Johnson, PT

Primary specialty

Physical TherapistTaxonomy code 225100000X

Practice address

1000 Cedar St
Houghton, MI 49931-1978

Phone

(906) 337-7000

NPI assigned

Nov 18, 2011

Sex

Female

Sole proprietor

No

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Enrolled in MI

Enrollment records 1

Specialty

Physical Therapist in Private Practice

Education

Other, 2011

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Aspirus KeweenawGroup PAC ID 8123912011, shared by 7 NPIs, 116 clinicians

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Practice roles

Locations

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

• Aspirus Iron River Hospital & Clinics, Inc.

  • Critical Access Hospital
  • Iron River, MI
  • NPI 1497750830
  Medicare reassignment NPD
• Aspirus Ironwood Hospital & Clinics, Inc.

  • Critical Access Hospital
  • Ironwood, MI
  • NPI 1649297342
  Medicare reassignment NPD
• Aspirus Ironwood Hospital & Clinics, Inc.

  • Family Medicine Physician
  • Ironwood, MI
  • NPI 1992704753
  Medicare reassignment
• Aspirus Keweenaw

  • Rural Health Clinic/Center
  • Laurium, MI
  • NPI 1205998713
  Medicare reassignment
• Aspirus Keweenaw

  • Critical Access Hospital
  • Laurium, MI
  • NPI 1326115569
  Medicare reassignment
• Aspirus Iron River Hospital & Clinics, Inc.

  • Rural Health Clinic/Center
  • Iron River, MI
  • NPI 1306344783
  NPD
• Aspirus Ironwood Hospital & Clinics, Inc.

  • Hospice and Palliative Medicine (Internal Medicine) Physician
  • Ironwood, MI
  • NPI 1609743590
  NPD
• Aspirus Keweenaw

  • Rural Health Clinic/Center
  • Ontonagon, MI
  • NPI 1023161932
  NPD
• Aspirus Keweenaw

  • Occupational Therapist
  • Houghton, MI
  • NPI 1205164555

  Physical Therapist

  NPD
• Aspirus Ontonagon Hospital, Inc.

  • Clinic/Center
  • Ontonagon, MI
  • NPI 1891889895
  NPD (past)

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1321574400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1765324800000",
    "number": "1942577044",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "205 OSCEOLA ST",
            "city": "LAURIUM",
            "state": "MI",
            "postal_code": "499132134",
            "telephone_number": "906-337-7000",
            "fax_number": "906-934-2780"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1000 CEDAR ST",
            "city": "HOUGHTON",
            "state": "MI",
            "postal_code": "499311978",
            "telephone_number": "906-337-7000"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "JOHNSON",
        "first_name": "KATHARINE",
        "credential": "PT",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2011-11-18",
        "last_updated": "2025-12-10",
        "certification_date": "2025-12-10",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "225100000X",
            "taxonomy_group": "",
            "desc": "Physical Therapist",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Marilyn Louise Isaacson, BSN, RN, CDDN
• Shannon Isaacson, PA-C
• Jared Berryman Chiropractic, PLLC
• Chad Robert Johnson, LBSW
• Diane Sue Johnson, R.N.
• Rebecca B Johnson, D.D.S.
• Shalini Johnson, M.D.
• Lance Kangas
• Rick Lee Kavorik, DDS
• Deborah Ann Kemppainen, R.N.

• Physical Therapist in Houghton, MI
• Providers in Houghton, MI by specialty
• Physical Therapist in Michigan

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Dec 10, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.